@Setanta,
Setanta wrote:The Dick Act (The Militia Act of 1903) defines the National Guard as the organized miliita,
A law can create whatever internal definition it wants, but it can't change what the Constitution says.
The militia referred to in the Constitution is a separate body from the US Army.
Also, the militia referred to in the Constitution can only be used to do three things when they are called into service by the Federal government: repel invasions, enforce the law, and suppress rebellions.
Also, the militia referred to in the Constitution has its officers appointed by the state governments, and the state governments are in charge of training it.
And most importantly of all, members of the militia referred to in the Constitution are allowed to buy their own military weapons and to keep them at home.
The National Guard is quite at odds with all of these characteristics (though I don't believe that the differences are all due to the Dick Act -- some of them were brought about by subsequent legislation).
Setanta wrote:and everyone with the right to bear arms who is not a member of the armed forces or the National Guard as the unorganized militia.
They do not use the right to keep and bear arms as any basis for determining who they classify as the unorganized militia.
The (non-militia) right to bear arms for self defense applies to people who do not even qualify for the unorganized militia -- the elderly for instance.
You forgot to mention the State Guards, which are the one part of the legislation that might count as the militia of the Constitution (but only if they existed as a heavily-armed force, and if its members could take their weapons home with them).